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Charlotte Koestner, LCSW
NPI 1609436807 · Social Worker · Phoenix, AZ
Charlotte Koestner, LCSW is a Social Worker provider in Phoenix, AZ (NPI 1609436807).
Provider details
- NPI number
- 1609436807
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- LCSW-17878 (AZ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(66/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
125 S 1st Ave
Phoenix, AZ 85003-1909
Phone: (602) 372-2315
Fax: (602) 372-2300
Street-level locationGet directions
Mailing address
125 S 1st Ave
Phoenix, AZ 85003-1909
Registry dates
- Enumerated
- 2019-06-19
- Last updated
- 2019-06-19
Frequently asked questions
- What is Charlotte Koestner's NPI number?
- Charlotte Koestner's National Provider Identifier (NPI) is 1609436807, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlotte Koestner's specialty?
- Charlotte Koestner is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Charlotte Koestner located?
- Charlotte Koestner's practice location on file with NPPES is 125 S 1st Ave, Phoenix, AZ 85003-1909.
- What is Charlotte Koestner's phone number?
- The practice phone number listed in the NPPES registry for Charlotte Koestner is (602) 372-2315.
- Is Charlotte Koestner's NPI active?
- Yes — Charlotte Koestner's NPI (1609436807) is active in the NPPES registry as of the last update on 2019-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.